Kent Watsen wrote:

> I'm putting together a OpenSolaris ZFS-based system and need help 
> picking hardware.

Fun exercise! :)

> I'm thinking about using this 26-disk case:  [FYI: 2-disk RAID1 for the 
> OS & 4*(4+2) RAIDZ2 for SAN]

What are you *most* interested in for this server? Reliability? 
Capacity? High Performance? Reading or writing? Large contiguous reads 
or small seeks?

One thing that I did that got a good feedback from this list was picking 
apart the requirements of the most demanding workflow I imagined for the 
machine I was speccing out.

> Regarding the mobo, cpus, and memory - I searched goggle and the ZFS 
> site and all I came up with so far is that, for a dedicated iSCSI-based 
> SAN, I'll need about 1 Gb of memory and a low-end processor - can anyone 
> clarify exactly how much memory/cpu I'd need to be in the safe-zone?  
> Also, are there any mobo/chipsets that are particularly well suited for 
> a dedicated iSCSI-based SAN?

I'm learning more and more about this subject as I test the server (not 
all that dissimilar to what you've described, except with only 18 disks) 
I now have. I'm frustrated at the relative unavailability of PCIe SATA 
controller cards that are ZFS-friendly (i.e., JBOD), and the relative 
unavailability of motherboards that support both the latest CPUs as well 
as have a good PCI-X architecture.

If you come across some potential solutions, I think a lot of people 
here will thank you for sharing...


adam
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